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Questions regarding the closest star to Earth, at the centre of the Solar System.
2
votes
Do our sun and moon have names?
Because there's no need to. "Sun" and "Moon" are relative terms and it's clear which bodies we mean (as long as we say the Sun / the Moon) when on Earth. If you stood on Proxima b's surface, Proxima C …
3
votes
1
answer
386
views
What if a primordial black hole went through the Sun?
How much mass would the Sun lose to a primordial black hole that (initially) has 10 Earth masses, passing through or close to the center of the Sun at solar escape velocity? How massive would the Sun …
3
votes
1
answer
343
views
What would happen to the Sun's evolution if it collided with another yellow dwarf?
How would the Sun evolve if it collided with another G-type main sequence star, perhaps a more massive one like Alpha Cen A? Since its mass would then be above the Chandrasekhar limit, could it eventu …